DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   mono
       adj 1: designating sound transmission or recording or
              reproduction over a single channel [syn: mono,
              monophonic, single-channel]
       n 1: an acute disease characterized by fever and swollen lymph
            nodes and an abnormal increase of mononuclear leucocytes or
            monocytes in the bloodstream; not highly contagious; some
            believe it can be transmitted by kissing [syn: infectious
    mononucleosis, mononucleosis, mono, glandular fever,
            kissing disease]